http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Unión Internacional de Ciencias Prehistóricas y Protohistóricas
X Congreso, México, D.F., octubre 19-24, 1981 : Programa
International Congress of Prehistoric and Protohistoric Sciences 1981 : Mexico City, Mexico)
International Union of Prehistoric and Protohistoric Sciences
Spanish, English, French or German according to participants involved.
From the Department of Anthropology, Center for the Study of the First Americans, February 2005.